Williams Dual Density Open Toe RubberThis open toe rubber is perfect for replacing those old rubbers and will keep your old waterski going for years to come Williams Dual Density Open Toe Rubber It's a classic tale. You haven't skied in years and get the old slalom ski out of the shed only to discover the rubbers have dried up, cracked and split! This open toe rubber is perfect for replacing those old rubbers and will keep your old waterski going for years to come. Dual density neoprene